Precision Stainless Steel Tubing ASTM A269 304L / 316L With Cold
Drawn Seamless Type
1 . Annealing of mother tuber ensures :
A) Removal of stress induced during tube forming and cold drawing
B) Sufficient ductility and softness for cold drawing
C) Transformation of the weld zone to austenitic nature
D) Re crystallization of metallic grains to original form and
thereby improving corrosion resistance
2 . The tubes are then coated with proper lubricant and then cold
drawn over a drew bench
1) To vary the metallurgical structure and restore the properties
to the parent material
2) To achieve a tube having closer dimensional tolerances
3) To produce tubing of smaller size and wall thickness
4) To reorient the grain structure of weld portion with that of the
parent material
5) To remove/minimize the internal bead
Test :
1 . NTD ( Ultrasonic test , Eddy Current test )
2 . Mechanical Test ( Tension Test , Flaring Test , Flattening Test
, Hardness Test , Hydraulic test )
3 . Metal Test ( Metallographic Analysis , Impact Test-High / low
temperature )
4 . Chemical Analysis ( Photoelectric Emission Spectroscopic )
Main Market :
MTSCO tubes main market include Europe , Middle East , Southeast
Asia , South America etc .
| Applications : |
| 1) . Petroleum , Chemical enterprise , Superheater of boiler , Heat
exchanger |
| 2) . High temperature resistant transmission fluid pipe in power
station |
| 3) . Ship with pressure pipe |
| 4) . The exhaust purification device |
| 5) . Construction and ornament : Escalator , Elevator , Doors
Production tools , Kitchen appliances , Freezers , Cold rooms |
| 6) . Equipment and Medical devices |
Stainless steel seamless bright annealed tube’s final surface is
polished and bright annealed . And the polished grade is includes
180# , 320# , 400# , 600# , 800# . According to standard very
strictly , tubes which produced by us always have correct OD and WT
tolerance . MTSCO has the most advanced technology — The floating
plug drawing technology which are used in Korea , and equipped with
the most environmentally process — Bright annealing process . So
our bright annealed precision tube produce technology make us can
produce 300 tons high precision tubes every months .
